EP 3917989 A1 20211208 - METHOD OF GRINDING POLY(ETHER KETONE KETONE) (PEKK)
Title (en)
METHOD OF GRINDING POLY(ETHER KETONE KETONE) (PEKK)
Title (de)
VERFAHREN ZUM MAHLEN VON POLY(ETHERKETONKETON) (PEKK)
Title (fr)
PROCÉDÉ DE BROYAGE DE POLY(ÉTHER CÉTONE CÉTONE) (PEKK)
Publication
Application
Priority
- US 201962799112 P 20190131
- EP 19162687 A 20190313
- EP 2020051768 W 20200124
Abstract (en)
[origin: WO2020156950A1] The present disclosure relates to process of obtaining a powder of poly(ether ketone ketone) (PEKK) polymer, comprising grinding a PEKK polymer at a temperature comprised between 60°C and 85°C, wherein the powder has a d50-value comprised between 40 pm and 60 pm (as measured by laser scattering in isopropanol). The present invention also relates to a PEKK powder presenting such particle size distribution (PSD), obtained by the grinding method of the present invention.
IPC 8 full level
B29C 64/153 (2017.01); B33Y 10/00 (2015.01); C08G 65/40 (2006.01); C08G 65/46 (2006.01)
CPC (source: EP US)
B29C 64/153 (2017.07 - EP US); B33Y 10/00 (2014.12 - EP US); B33Y 70/00 (2014.12 - EP US); C08G 65/4012 (2013.01 - US); C08G 65/46 (2013.01 - EP US); C08G 65/4012 (2013.01 - EP); C08G 2650/40 (2013.01 - EP US); C09D 171/10 (2013.01 - US)
Citation (search report)
See references of WO 2020156950A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020156950 A1 20200806; CN 113348197 A 20210903; EP 3917989 A1 20211208; JP 2022518837 A 20220316; US 2022098366 A1 20220331
DOCDB simple family (application)
EP 2020051768 W 20200124; CN 202080011078 A 20200124; EP 20701199 A 20200124; JP 2021544329 A 20200124; US 202017426671 A 20200124